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All productsAs we all know, PON interface boards work with the optical network unit to provide PON access services, there are kinds of PON boards of Huawei MA5800 series OLT.
The below table shows the relationships between PON optical modules and boards:
| Board Type | Board Name | Optical Module Type | Encapsulation Type | Port Rate |
| GPON interface board | GPHF/GPSF | GPON Optical Module | SFP | Tx: 2.488 Gbit/s
Rx: 1.244 Gbit/s |
| XG-GPON interface board | XGHD/XGSF | XG-PON Optical Module | SFP+ | Tx: 9.953 Gbit/s
Rx: 2.488 Gbit/s |
| XGS-GPON interface board | TWED | XGS-PON Optical Module (XFP) | XFP | Asymmetric mode:
Tx: 9.953 Gbit/s Rx: 9.953 Gbit/s Symmetric mode: Tx: 9.953 Gbit/s Rx: 2.488 Gbit/s |
| XSHF/XSHD/TWHD | XGS-PON Optical Module (SFP+) | SFP+ | ||
| XG-PON and GPON Combo interface board | CGID | XG-PON&GPON Combo PON Optical Module (XFP) | XFP | GPON channel:
Tx: 2.488 Gbit/s Rx: 1.244 Gbit/s XG-PON channel: Tx: 9.953 Gbit/s Rx: 2.488 Gbit/s |
| CGHF/CGHD | XG-PON&GPON Combo PON Optical Module (SFP+) | SFP+ | GPON channel:
Tx: 2.488 Gbit/s Rx: 1.244 Gbit/s XG-PON channel: Tx: 9.953 Gbit/s Rx: 2.488 Gbit/s |
|
| XGS-PON and GPON Combo interface board | CSHF/CSHD | XGS-PON&GPON Combo PON Optical Module (SFP+) | SFP+ | GPON channel:
Tx: 2.488 Gbit/s Rx: 1.244 Gbit/s XGS-PON channel: Tx: 9.953 Gbit/s Rx: 9.953/2.488 Gbit/s |
| Flex-PON interface board | FLHF | GPON Optical Module (gpon mode) | SFP | Tx: 2.488 Gbit/s
Rx: 1.244 Gbit/s |
| XG-PON Optical Module (xg-pon mode) | SFP+ | Tx: 9.953 Gbit/s
Rx: 2.488 Gbit/s |
||
| XGS-PON Optical Module (SFP+) (xgs-pon mode) | SFP+ | Tx: 9.953 Gbit/s
Rx: 9.953/2.488 Gbit/s |
||
| XG-PON&GPON Combo PON Optical Module (SFP+) (combo-pon (xg-pon) mode) | SFP+ | GPON channel:
Tx: 2.488 Gbit/s Rx: 1.244 Gbit/s XG-PON channel: Tx: 9.953 Gbit/s Rx: 2.488 Gbit/s |
||
| XGS-PON&GPON Combo PON Optical Module (SFP+) (combo-pon (xgs-pon) mode) | SFP+ | GPON channel:
Tx: 2.488 Gbit/s Rx: 1.244 Gbit/s XGS-PON channel: Tx: 9.953 Gbit/s Rx: 9.953/2.488 Gbit/s |
||
The most two important factors of the SFP transceiver: Output power (TX power) and receiver sensitivity (RX sensitivity).
The optical TX power is the signal level leaving from that device, which should be within the transmitter power range.
The RX sensitivity is the incoming signal level being received from the far end device and it should fall within the receive power range.
We will compare the GPON/XGPON/XGSPON Optical Modules separately following:
GPON Optical Module
A GPON optical module is connected to one SC optical fiber to provide the Gigabit-capable passive optical network (GPON) access service.
| Type | One-fiber bidirectional optical module, class B+ | One-fiber bidirectional optical module, class C+ | One-fiber bidirectional optical module, class C++ |
| No. | 1 | 2 | 3 |
| Operating Wavelength | Tx: 1490 nm
Rx: 1310 nm |
Tx: 1490 nm
Rx: 1310 nm |
Tx: 1490 nm
Rx: 1310 nm |
| Encapsulation Type | SFP | SFP | SFP |
| Port Rate | Tx: 2.488 Gbit/s
Rx: 1.244 Gbit/s |
Tx: 2.488 Gbit/s
Rx: 1.244 Gbit/s |
Tx: 2.488 Gbit/s
Rx: 1.244 Gbit/s |
| Minimum Output Optical Power | 1.5 dBm | 3 dBm | 6 dBm |
| Maximum Output Optical Power | 5 dBm | 7 dBm | 10 dBm |
| Maximum Receiver Sensitivity | -28 dBm | -32 dBm | -35 dBm |
| Optical Connector Type | SC | SC | SC |
| Optical Fiber Type | Single-mode | Single-mode | Single-mode |
| Overload Optical Power | -8 dBm | -12 dBm | -15 dBm |
| Extinction Ratio | 8.2 dB | 8.2 dB | 8.2 dB |
XG-PON Optical Module
An XG-PON optical module is connected to one SC optical fiber to provide the 10-Gigabit-capable passive optical network (XG-PON) access service.
| Type | One-fiber bidirectional optical module, N1 | One-fiber bidirectional optical module, N2a |
| No. | 1 | 2 |
| Operating Wavelength | Tx: 1577 nm
Rx: 1270 nm |
Tx: 1577nm
Rx: 1270nm |
| Encapsulation Type | SFP+ | SFP+ |
| Port Rate | Tx: 9.953 Gbit/s
Rx: 2.488 Gbit/s |
Tx: 9.953 Gbit/s
Rx: 2.488 Gbit/s |
| Minimum Output Optical Power | 2 dBm | 4dBm |
| Maximum Output Optical Power | 6 dBm | 8dBm |
| Maximum Receiver Sensitivity | -27.5 dBm | -29.5 dBm |
| Optical Connector Type | SC | SC |
| Optical Fiber Type | Single-mode | Single-mode |
| Overload Optical Power | -7 dBm | -9 dBm |
| Extinction Ratio | 8.2 dB | 8.2 dB |
XGS-PON Optical Module (XFP)
An XGS-PON optical module is connected to one SC optical fiber to provide the 10-Gigabit-capable symmetric passive optical network (XGS-PON) access service.
| Type | One-fiber bidirectional optical module, N1 |
| Operating Wavelength | Tx: 1577 nm
Rx: 1270 nm |
| Encapsulation Type | XFP |
| Port Rate | Tx: 9.953 Gbit/s
Rx: 9.953/2.488 Gbit/s |
| Minimum Output Optical Power | 2 dBm |
| Maximum Output Optical Power | 5 dBm |
| Maximum Receiver Sensitivity | -26 dBm |
| Optical Connector Type | SC |
| Optical Fiber Type | Single-mode |
| Overload Optical Power | -6 dBm |
| Extinction Ratio | 8.2 dB |
XGS-PON Optical Module (SFP+)
An XGS-PON optical module is connected to one SC optical fiber to provide the 10-Gigabit-capable symmetric passive optical network (XGS-PON) access service.
| Type | One-fiber bidirectional optical module, N2 | One-fiber bidirectional optical module, N1 |
| No. | 1 | 2 |
| Operating Wavelength | Tx: 1577 nm
Rx: 1270 nm |
Tx: 1577 nm
Rx: 1270 nm |
| Encapsulation Type | SFP+ | SFP+ |
| Port Rate | Tx: 9.953 Gbit/s
Rx: 9.953/2.488 Gbit/s |
Tx: 9.953 Gbit/s
Rx: 9.953/2.488 Gbit/s |
| Minimum Output Optical Power | 4 dBm | 2 dBm |
| Maximum Output Optical Power | 7 dBm | 5 dBm |
| Maximum Receiver Sensitivity | XG-PON channel: -29.5 dBm
XGS-PON channel: -28 dBm |
XG-PON channel: -27.5 dBm
XGS-PON channel: -26 dBm |
| Optical Connector Type | SC | SC |
| Optical Fiber Type | Single-mode | Single-mode |
| Overload Optical Power | XG-PON channel: -9 dBm
XGS-PON channel: -7 dBm |
XG-PON channel: -7 dBm
XGS-PON channel: -5 dBm |
| Extinction Ratio | 8.2 dB | 8.2 dB |
XG-PON&GPON Combo PON Optical Module (XFP)
An XG-PON&GPON Combo PON optical module is connected to one SC optical fiber to provide the XG-PON and GPON access services.
| Type | One-fiber bidirectional optical module, N1 | One-fiber bidirectional optical module, N2a |
| No. | 1 | 2 |
| Operating Wavelength | GPON channel:
Tx: 1490 nm Rx: 1310 nm XG-PON channel: Tx: 1577 nm Rx: 1270 nm |
GPON channel:
Tx: 1490 nm Rx: 1310 nm XG-PON channel: Tx: 1577 nm Rx: 1270 nm |
| Encapsulation Type | XFP | XFP |
| Port Rate | GPON channel:
Tx: 2.488 Gbit/s Rx: 1.244 Gbit/s XG-PON channel: Tx: 9.953 Gbit/s Rx: 2.488 Gbit/s |
GPON channel:
Tx: 2.488 Gbit/s Rx: 1.244 Gbit/s XG-PON channel: Tx: 9.953 Gbit/s Rx: 2.488 Gbit/s |
| Minimum Output Optical Power | GPON channel: 1.5 dBm
XG-PON channel: 2 dBm |
GPON channel: 3 dBm
XG-PON channel: 4 dBm |
| Maximum Output Optical Power | GPON channel: 5 dBm
XG-PON channel: 6 dBm |
GPON channel: 7 dBm
XG-PON channel: 8 dBm |
| Maximum Receiver Sensitivity | GPON channel: -28 dBm
XG-PON channel: -27.5 dBm |
GPON channel: -32 dBm
XG-PON channel: -29.5 dBm |
| Optical Connector Type | SC | SC |
| Optical Fiber Type | Single-mode | Single-mode |
| Overload Optical Power | GPON channel: -8 dBm
XG-PON channel: -7 dBm |
GPON channel: -12 dBm
XG-PON channel: -9 dBm |
| Extinction Ratio | 8.2 dB | 8.2 dB |
XG-PON&GPON Combo PON Optical Module (SFP+)
An XG-PON&GPON Combo PON optical module is connected to one SC optical fiber to provide the XG-PON and GPON access services.
| Type | One-fiber bidirectional optical module, class B+ | One-fiber bidirectional optical module, N2a | One-fiber bidirectional optical module, class C+ | One-fiber bidirectional optical module, class D |
| No. | 1 | 2 | 3 | 4 |
| Operating Wavelength | GPON channel:
Tx: 1490 nm Rx: 1310 nm XG-PON channel: Tx: 1577 nm Rx: 1270 nm |
GPON channel:
Tx: 1490 nm Rx: 1310 nm XG-PON channel: Tx: 1577 nm Rx: 1270 nm |
GPON channel:
Tx: 1490 nm Rx: 1310 nm XG-PON channel: Tx: 1577 nm Rx: 1270 nm |
GPON channel:
Tx: 1490 nm Rx: 1310 nm XG-PON channel: Tx: 1577 nm Rx: 1270 nm |
| Encapsulation Type | SFP+ | SFP+ | SFP+ | SFP+ |
| Port Rate | GPON channel:
Tx: 2.488 Gbit/s Rx: 1.244 Gbit/s XG-PON channel: Tx: 9.953 Gbit/s Rx: 2.488 Gbit/s |
GPON channel:
Tx: 2.488 Gbit/s Rx: 1.244 Gbit/s XG-PON channel: Tx: 9.953 Gbit/s Rx: 2.488 Gbit/s |
GPON channel:
Tx: 2.488 Gbit/s § Rx: 1.244 Gbit/s XG-PON channel: Tx: 9.953 Gbit/s Rx: 2.488 Gbit/s |
GPON channel:
Tx: 2.488 Gbit/s Rx: 1.244 Gbit/s XG-PON channel: Tx: 9.953 Gbit/s Rx: 2.488 Gbit/s |
| Minimum Output Optical Power | GPON channel: 1.5 dBm
XG-PON channel: 1 dBm |
GPON channel: 3 dBm
XG-PON channel: 4 dBm |
GPON channel: 3 dBm
XG-PON channel: 5 dBm |
GPON channel: 6 dBm
XG-PON channel: 8 dBm |
| Maximum Output Optical Power | GPON channel: 5 dBm
XG-PON channel: 6 dBm |
GPON channel: 7 dBm
XG-PON channel: 8 dBm |
GPON channel: 7 dBm
XG-PON channel: 8 dBm |
GPON channel: 10 dBm
XG-PON channel: 11 dBm |
| Maximum Receiver Sensitivity | GPON channel: -28 dBm
XG-PON channel: -26.5 dBm |
GPON channel: -32 dBm
XG-PON channel: -29.5 dBm |
GPON channel: -32 dBm
XG-PON channel: -30.5 dBm |
GPON channel: -35 dBm
XG-PON channel: -33.5 dBm |
| Optical Connector Type | SC | SC | SC | SC |
| Optical Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode |
| Overload Optical Power | GPON channel: -8 dBm
XG-PON channel: -7 dBm |
GPON channel: -12 dBm
XG-PON channel: -9 dBm |
GPON channel: -12 dBm
XG-PON channel: -10 dBm |
GPON channel: -15 dBm
XG-PON channel: -13 dBm |
| Extinction Ratio | 8.2 dB | 8.2 dB | 8.2 dB | 8.2 dB |
XGS-PON&GPON Combo PON Optical Module (SFP+)
An XGS-PON&GPON Combo PON optical module is connected to one SC optical fiber to provide the XGS-PON and GPON access services.
| Type | One-fiber bidirectional optical module, class D | One-fiber bidirectional optical module, class C+ | One-fiber bidirectional optical module, class B+ |
| No. | 1 | 2 | 3 |
| Operating Wavelength | GPON channel:
Tx: 1490 nm Rx: 1310 nm XGS-PON channel: Tx: 1577 nm Rx: 1270 nm |
GPON channel:
Tx: 1490 nm Rx: 1310 nm XGS-PON channel: Tx: 1577 nm Rx: 1270 nm |
GPON channel:
Tx: 1490 nm Rx: 1310 nm XGS-PON channel: Tx: 1577 nm Rx: 1270 nm |
| Encapsulation Type | SFP+ | SFP+ | SFP+ |
| Port Rate | GPON channel:
Tx: 2.488 Gbit/s Rx: 1.244 Gbit/s XGS-PON channel: Tx: 9.953 Gbit/s Rx: 9.953/2.488 Gbit/s |
GPON channel:
Tx: 2.488 Gbit/s Rx: 1.244 Gbit/s XGS-PON channel: Tx: 9.953 Gbit/s Rx: 9.953/2.488 Gbit/s |
GPON channel:
Tx: 2.488 Gbit/s Rx: 1.244 Gbit/s XGS-PON channel: Tx: 9.953 Gbit/s Rx: 9.953/2.488 Gbit/s |
| Minimum Output Optical Power | GPON channel: 6 dBm
XGS-PON channel: 8 dBm |
GPON channel: 3 dBm
XGS-PON channel: 5 dBm |
GPON channel: 1.5 dBm
XGS-PON channel: 1 dBm |
| Maximum Output Optical Power | GPON channel: 10 dBm
XGS-PON channel: 11 dBm |
GPON channel: 7 dBm
XGS-PON channel: 8 dBm |
GPON channel: 5 dBm
XGS-PON channel: 4 dBm |
| Maximum Receiver Sensitivity | GPON channel: -35 dBm
XG-PON channel: -33.5 dBm XGS-PON channel: -32 dBm |
GPON channel: -32 dBm
XG-PON channel: -30.5 dBm XGS-PON channel: -29 dBm |
GPON channel: -28 dBm
XG-PON channel: -26.5 dBm XGS-PON channel: -25 dBm |
| Optical Connector Type | SC | SC | SC |
| Optical Fiber Type | Single-mode | Single-mode | Single-mode |
| Overload Optical Power | GPON channel: -15 dBm
XG-PON channel: -13 dBm XGS-PON channel: -11 dBm |
GPON channel: -12 dBm
XG-PON channel: -10 dBm XGS-PON channel: -8 dBm |
GPON channel: -8 dBm
XG-PON channel: -6 dBm XGS-PON channel: -4 dBm |
| Extinction Ratio | 8.2 dB | 8.2 dB | 8.2 dB |
Hope you can understand the differences between all kinds of PON optical modules in this article.